Screw



FIG. 1 is a perspective view of the screw showing my new design, taken from the top, rear and right side thereof;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a cross-sectional view thereof taken along the lines 8-8 in FIG. 6, illustrating the configuration of the groove formed in the screw. 

CLAIM The ornamental design for a screw, as shown and described. 